Saw-tool.



No. 744,811. 1 PATENTED NOV. 24, 1903.

E. G. SMITH. v

SAW TOOL.

APPLICATION FILED JUNE 3, 1903.

N0 MODEL.

(/(, SS es ficVe-ixi (for my improved saw-tool.

N... 744,8ii.

UNITED STATES i atented November 24, 1905.

Pnrnr FIFIQE.

SAW-TOOL.

erECIFlcATloN forming part of Letters Patent N 0. 744,811, datedNovember 4:, 190

Application filed June 3,1903. Serial No. 159.971- llc mcdcl.)

To all whom it may concern:

Be it known that I, ERNEST GEORGE SMITH, of the post-office ofLorimerLake,ParrySound district, Province of Ontario, Canada, haveinvented certain new and useful Improvements in Saw-Tools, of which thefollowing is a specification.

The object of my invention is to devise a simple compact tool by meansof which all the operations necessary to put a saw into proper conditionand to keep it so may be efficiently performed; and it consists,essentially, of a tool in which are combined a punchset, a spring-set, aset-gage, a sWaging-hammer, a joiuter, and a cleaner-teeth gage,substantially as hereinafter more specifically described and thendefinitely claimed.

Figures 1 and 2 are perspective views of Fig. 3 is an end View of thesame from the punch-set end.

In the drawings like letters of reference indicate corresponding partsin the different figures.

The tool comprises an elongated substantially straight-sided body A,rectangular in cross-section. One end is provided with a projection Bwith a triangular-shaped recess at its base. This forms a punch-set,which being old and well known need not be more particularly described.

O is a swaging-hammer, by means of which the points of the drag orcleaner teeth of a saw may be swaged to make them better clean out thesawdust. Opposite the swaging-hammer a slot D is cut in the tool-body toform a spring-set. By engaging a tooth of the sawwith this slot it maybe readily bent to give it the desired set. In order to gage the properamount of set, I provide the side of the tool with two fixed studs 1) band one adjustable screw-stud 0, these being situated in line with oneanother. The stud c is screwed in to give the desired set and the twostuds b I) placed against the side of the saw with the stud c in linewith the point of the tooth. It is then easily seen Whether the toothhas the desired set or not. The studs being adjacent to thespring-setslot D make them very convenient to use, and as they are inline with one another the set of the individual tooth is accuratelygaged without reference to any bend or warp there may be in the lengthof the saw.

For jointing I provide the side of the tool with the screw-clamps E E,which may be screwed down to engage the side of a filat file, which willproject over the side of the tool adjacent to the guides'F F. Theseguides are T-shaped, as shown, and their stems are preferably dovetailedin cross-section and fitted into dovetailed grooves cl in the side ofthe tool in such a manner that the outer surfaces of the guides aresubstantially flush with the plane side of the tool. The heads of theguides also preferably fit into the recess e in the edge of the toolwhen the guides are closed up. The saw is jointed by securing a file inplace, as described, then extending the guides, as shown in Fig. 1, andplacing the tool with their surfaces against the side of the saw and thefile on the tops of the teeth. The file is then gently rubbed over thepoints of the teeth to bring them to an,

even length. The tool does not possess of itself sufiicient Width toenable it to contact with the plate of the saw below the teeth. Hencethe use of the extensible guides insures the proper steadying of the sawwhen in use, while they enable the body of the tool to be made verycompact for carrying in the pocket.

For the purpose of gaging the drag-teeth of the saw I form a recessfinthe edge of the tool adjacent to the heads of the guides F F. Thisrecess is spanned by the bridge G,Which has a slot cut therein toreceive the points of the drag or cleaner teeth. The inner sides of theextensible guides F F are substantially in line with one edge of theslotin the bridge G. This bridge, while it may be formed integral withthe tool, is preferably made separate, as indicated, and is secured inposition by the set-screws g, as shown. This enables me to put liners hbetween its ends and the tool,s0 that the bridge may be set out from thetool to varying distances, according to the amount it is desired to takeoff the points of the cleaner-teeth. The inner surface of the bridge, itwill be noticed, is set out so as to extend somewhat below the undersurface of the tool, which is preferably aplane surface.

The cleaner or drag teeth are gaged byintroducing them through the slotin the bridge. The points of the cutting-teeth come in contact with theplane surface of the tool. A flat file is introduced into the recessfandthe points of the teeth out ofi level with the inner surfaces of thebridge G.

What I claim as my invent-ion is 1. A saw-tool having a straight side; arecess formed in the said straight side; a 1ongitudinally-slotted bridgespanning the said recess, its inner side being set slightly below thelevel of the said straight side of the tool,

. substantially as described.

2. A saw-tool having a straight side; a recess formed in the saidstraight side; a longitudinally-slotted bridge spanning the said recess,its inner side being set slightly below the level of the said straightside of the tool; and extensible guides having their inner sidessubstantially in line with one edge of the slot, substantially asdescribed.

8. A sawtool having a straight side; a recess formed in the saidstraight side; a 1011- gitudinally-slotted bridge spanning the saidrecess and removably secured in place by screws, its inner side beingset slightlybelow the level of the said straight side of the tool,substantially as described.

4. A saw-tool having a plane side; guides transversely movable ingrooves in the tool and set flush with the plane side; and fileclamps ona side at right angles to the aforesaid plane side, substantially asdescribed.

Lorimer Lake, Ontario, May 26, 1903.

ERNEST GEORGE SMITH.

In presence of F. A. LAURIE, HENRY STOREY.

